Mask air purifier



FIG. 1 is a front, right side, perspective view of a mask air purifiershowing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an exploded perspective view showing the sealer part isseparated from the main body of the mask air purifier.

CLAIM The ornamental design for a mask air purifier, as shown anddescribed.